Soldering and welding materials.



warren snare AUGUSTE CORNAN'D AND HENRI VAN DE CRUYS, OF BRUSSELS, BELGIUM.

SOLDERING AND WELDING. MATERIALS.

Specification of Letters Patent.

Patented Apr. 7, 1914.

No Drawing. Application filed March 23, 1911, serial No. 616,391. Renewed January 23, 1914. Serial No. 814,002.

ments in Soldering and Welding Materials.

The present invention relates to improvements in soldering and welding materials for aluminum: and it comprises an alloy of the .four metals indicated below which permits the soldering and welding operation to be carried out at relatively low temperatures.

The invention is illustrated by the following specific example which shows one embodiment thereof, the four metals used in producing the all0y,zinc, aluminum, tin i substantially 1 set our hands in presence of two witnesses.

and nickel-being combined in the following proportions parts by weight of pure zinc.

17.5 aluminum.

30 Banca tin.

0.5 nickel.

The nickel may be replaceddoy an equal amount of German silver, (white copper). The presence of the t n and nickel enables the solder to be melted at a lower temperatnre and hence enables the soldering operation to 'be carried out at relatively low temperatures, The solder is moreover Yer satisfactory in operation and adheres firmly to the places to which applied. The new composition or alloy can be used without. acids or welding powders.

. -e claim:

1. A soldering and welding alloy for aluminum made up of the following four metals,aluminum, tin, nickel, and zinc. 2. A soldering and welding alloy for 1 aluminum made up of the following metals in substantially the following proportions.- aluminum 17.5 parts. zine 52 parts. tin 30 parts, and nickel 0.5 parts. y

In testimony whereof we have hereunto AUGUSTE connann. HENRI van DE CRUYS.

\Vitnesses M. GERBAULD, EMILE VAN Waxnncn.

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